Gas-heating apparatus



C. M- GUILDL Gas Stove. v, .No. 11,244. Patented July 11, 1 854.

UNITED STATES PATENT OFFICE.

CHARLES M. GUILD, OF BROOKLYN, NEW YORK.

GAS-HEATING APPARATUS;

Specification forming part of Letters Patent No. 11,244, dated July 11, 1854.

To all whom Z27 may concern.-

Be it known that I, CHARLES M. GUILD, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Apparatus for Heating Sad-Irons, Plates, or Cooking or Boiling by Gas; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the acco1n panying drawings, making a part thereof, in which- Figure 1 represents a side elevation. Fig. 2 represents a vertical section through the center of the same with the several parts separated from each other, but arranged in the orderin which they are put together. Fig. 3 represents top views of some of the pieces in Fi 2.

gimilar letters in all the figures denote like parts.

The nature of my invention consists in so constructing the heating apparatus as that the weight of the thing to be heated or the act of placing the article to be heated thereon shall open the valve to admit the gas to the burner and the removing of the article therefrom close the valve, and also in the small perforation leading from the gas-pipe to the burner for the purpose of admitting a jet of gas to the burner barely sufficient to keep up the flame without unnecessary wasting of the gas when the apparatus is'not in actual heating use or when one article is removed and before another is replaced thereon, and by which means therelig-hting of the apparatus is avoided.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

A represents the stem of the apparatus, which is hollow, as seen in Fig. 2, and provided with an opening B, with a thread of a screw therein, by which it is attached to any ordinary gas-pipe. Said stem is open at its lower end for the purpose of inserting the valve a with its rod 1) and spring 0, and when they are in place the piece 0 is screwed into said opening to keep the parts inside in proper position, said piece 0 having a hole d bored into its inner end, into which the rod 11 may play as the valve is opened and closed. The helical spring 0 is coiled around the valv c-rcd b, one end of said spring resting against the top of the piece 0 and the other end against the under side of the conical valve a. The valve (1 has a suitable conical seat in the stem A, into which it is forced by the spring cwhen there is nothing to counteract the spring. This would shut off the gas entirely; but that there may be a small jet sufficient to keep up the flame so long as the cook in the gas-pipe is open and to prevent the relighting every time the apparatus is used Imake a small perforation a: through the valve or at any other point, so as to lead around the valve and operate independently of said valve, which just makes flame enough to ignite the gas when let on through the valve. After the gas passes through the valve a it enters the openings ff, (there being four or any other number, but two only being seen in the drawings.) The piece D passes through the disk E and through the wire-gauze ring or rings F and screws, into the stem A at top, closing it up. The groove g around the lower part of the piece D is for admitting the gas through the said piece into the openings f f, whence it rises up into the chimney or burner G, which may be solid or hollow. The openings f fare made in the flange, disk, or enlarged part H of the stem A, and through said partH are made suitable air-holes h h to admit abundance of air to the gas. These holes h 7t communicate with other holes or openings in the plate E, and the air as it passes in is deflected by the flange I on the piece D. There are other air-holesjj in the plate E near its outer perimeter for admitting air also. The gas after it passes through the wire-gauze F, of which there may be several thicknesses, and by passing through which it is separated into exceedingly small jets, rises up through the openings 70 7c in the plate E and commingles with the air, which is introduced, as before stated, and burns with a dim flame, but with great heat, filling the entire chimney or radiator G and heating any article placed over it. A rod J rests in asteplin the top of the valverod and thence passes up through openings in F, E, and D, in the latter of which it should closely fit without being held tight, and projects just far enough above the supports K K (which hold the article to be warmed or heated) to receive the first cit he weight of the article,

whioh presses down said rod J against the valve-rod, opening the valve and allowing the gas to pass up; and again in removing the article from the supports and from the rod J the spring 0 closes the valve and shuts off the gas. Thus the full supply of gas is only on when the article to be heated is on the apparatus andis taken off the moment the article is removed, the small perforation through or around the valve just supplying gas enough to keep up the flame. The object of the gauze disks is to separate the gas into the minutest jets, and in this condition to mix with it as much atmospheric air as can be done, by which means great heat is brought out of the burning of the gas without great waste. These gas-heating machines may be arranged along the walls, attached to any gas-pipe, and used for cooking, boiling, or any other heating process with very great economy,

Having thus fully described the nature of my invention, what I claim therein as new, and desire to secure by Letters Patent, is

1. The opening and closing of the valve which admits the gas to the heating apparatus by the act of placing and removing the vessel or thing to be heated, substantially as described.

2. The small perforation leading from the gas-pipe to the burner or heating apparatus. acting independentlyof the valve for the purpose of admitting a jet of gas barely sufficient to keep up the flame without unnecessary consumption of gas when the heater is not in immediate use or when one article is removed and before another takes its place, substantially as described.

CHARLES M. GUILD.

Witnesses:

A. B. STOUGHTON, SAML. GRUBB. 

